Simple voltage-time type power distribution terminal action logic studying and judging method

Abstract

The invention discloses a simple voltage-time type power distribution terminal action logic studying and judging method, and relates to a power distribution terminal. According to the technical scheme, the method is characterized by comprising the steps of S1, determining state attributes of action logic research and judgment of the voltage-time type power distribution terminal; s2, quantizing the state attribute in the step S1 to obtain a state attribute quantized value; s3, sequencing the state attribute quantized values in the step S2, and obtaining binary numbers of the state attribute quantized values; s4, converting the binary number obtained in the step S3 into a decimal number to obtain an action logic value; s5, establishing an action logic research and judgment conclusion table, wherein the action logic research and judgment conclusion table comprises action logic values and action logic research and judgment corresponding to the action logic values; and S6, in practical application, calculating the action logic value of the voltage-time type power distribution terminal, and obtaining corresponding action logic research and judgment by inquiring the action logic research and judgment conclusion table. The method is mainly used for quickly finding out the power distribution terminal with the abnormal logic action.

Description

Technical Field

[0001] The present invention relates to the field of power distribution terminals, and more specifically, to a concise voltage-time type power distribution terminal action logic analysis method. Background Art

[0002] When a distribution line fails, feeder automation (FA) can automatically locate and isolate the faulty area of ​​the distribution line and restore power supply to non-faulty lines, which can effectively reduce the power outage time for users, narrow the scope of power outage, save troubleshooting time, and improve power supply reliability and user satisfaction.

[0003] On-site FA has the advantages of clear logic, accurate fault location, fault isolation independent of communication, and high success rate of fault isolation. At present, its forms mainly include voltage-time type and voltage-current time type. Among them, voltage-time type FA only needs to judge the voltage signal, with high reliability, and is suitable for distribution lines with long line lengths and wide coverage areas. At present, the 10kV distribution network lines in Guangxi Zhuang Autonomous Region mainly use voltage-time type FA. By the end of 2023, the entire Guangxi Zhuang Autonomous Region will have installed and put into operation more than 31,000 voltage-time type distribution terminals (hereinafter referred to as voltage type terminals).

[0004] Voltage-type terminals use action logics such as voltage loss tripping, power-on closing, and fault interlocking to accurately locate and isolate faults. This entire set of action logic needs to be reasonable, correct, and reliable. However, in actual use, voltage-type terminals often fail to act according to the predetermined logic due to reasons such as terminal version, fixed value setting, and daily operation and maintenance. With the acceleration of the pace of distribution automation construction, a large number of equipment have begun to be connected to the grid. In order to further improve the accuracy of fault analysis, many power supply bureaus require "one trip one analysis" for the lines covered by distribution terminals. The purpose is to find distribution terminals with abnormal logical actions.

[0005] Traditionally, the action logic of voltage-type terminals is analyzed based on the entire action process of the voltage-type terminals. After the outgoing line switch of the substation trips due to an accident, the action process of all automatic switches is analyzed one by one according to the action sequence diagram based on the line. The steps are complicated and cannot adapt to various actual situations, and the accuracy is not high.

[0006] Based on this, this patent provides a concise method for analyzing the action logic of a voltage-type terminal. This method is based on the action logic value of the voltage-type terminal and has the advantages of simple steps, accurate analysis results, clear and concise logic, and easy program implementation. Summary of the invention

[0007] The embodiment of the present invention provides a concise method for analyzing the action logic of a voltage-time type distribution terminal. The present invention proposes the concept of action logic value of a voltage-time type distribution terminal, and performs action logic analysis based on the action logic value. It has the advantages of simple steps, accurate analysis results, clear and concise logic, and easy program implementation.

[0008] To achieve the above object, the present invention provides a concise voltage-time type distribution terminal action logic analysis method, comprising:

[0009] S1. Determine the state attributes of the voltage-time type distribution terminal action logic analysis;

[0010] S2. quantize the state attribute in step S1 to obtain a quantized value of the state attribute;

[0011] S3. Sort the state attribute quantization values ​​in step S2 and obtain the binary number of the state attribute quantization value;

[0012] S4. Convert the binary number obtained in step S3 into a decimal number to obtain an action logic value;

[0013] S5. Establish an action logic judgment conclusion table, the action logic judgment conclusion table includes an action logic value and an action logic judgment corresponding to the action logic value;

[0014] S6. In actual application, the action logic value of the voltage-time type distribution terminal is calculated, and the action logic value is obtained by querying the action logic judgment conclusion table to obtain the corresponding action logic judgment.

[0015] In particular, the state attributes of the voltage-time type distribution terminal action logic analysis in step S1 include: voltage type terminal zero voltage locking state, voltage type terminal Y locking state, voltage type terminal X locking state, voltage type terminal open and close position state, and voltage type terminal side voltage state.

[0016] In particular, the state attribute quantization value in step S2 includes the voltage type terminal zero voltage locking state value, the voltage type terminal Y locking state value, the voltage type terminal X locking state value, the voltage type terminal open / close position state value, and the voltage type terminal side voltage state value.

[0017] In particular, obtaining the state attribute quantization value in step S2 specifically includes the following sub-steps:

[0018] S2.0: voltage type terminal zero voltage locking state. When the voltage type terminal zero voltage locking is activated, the voltage type terminal zero voltage locking state value is 1, otherwise it is 0;

[0019] S2.1: Voltage type terminal Y locking state. When the voltage type terminal Y is locked, the voltage type terminal Y locking state value is 1, otherwise it is 0;

[0020] S2.2: The locking state of voltage type terminal X. When the locking action of voltage type terminal X is activated, the locking state value of voltage type terminal X is 1, otherwise it is 0.

[0021] S2.3: Voltage type terminal opening and closing position status. When the voltage type terminal is closed, the voltage type terminal opening and closing position status value is 1, otherwise it is 0;

[0022] S2.4: Voltage status of the voltage type terminal side. When there is voltage on the power supply side of the voltage type terminal, the voltage status value of the voltage type terminal side is 1, otherwise it is 0.

[0023] In particular, the state attribute quantization values ​​in step S3 are sorted from right to left.

[0024] In particular, the action logic value formula in step S4 is:

[0025] S=1×S0+2×S1+4×S2+8×S3+16×S4 (1);

[0026] In the formula, S is the action logic value, S0 is the unary number of the first state quantization after the step S3 is sorted, S1 is the binary number of the second state quantization after the step S3 is sorted, S2 is the binary number of the third state quantization after the step S3 is sorted, S3 is the binary number of the fourth state quantization after the step S3 is sorted, and S4 is the binary number of the fifth state quantization after the step S3 is sorted.

[0027] In particular, the action logic value conclusion table also includes logical judgments corresponding to the action logic values.

[0028] In particular, if the logic judgment in the action logic value conclusion table is correct, the action logic judges that the logical action is correct; if the logic judgment is incorrect, the action logic judges that the logical action is incorrect.

[0029] The beneficial effect of the present invention is that the present invention determines the state attribute of the voltage-time type distribution terminal action logic judgment, calculates the action logic value, queries the action logic value conclusion table, and quickly finds the distribution terminal with abnormal logic action. The present invention has the advantages of simple steps, accurate judgment results, clear and concise logic, and easy program implementation.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention determines the state attributes of the voltage-time type distribution terminal action logic judgment, calculates the action logic value, queries the action logic value conclusion table, and quickly finds the distribution terminal with abnormal logic action. The present invention has the advantages of simple steps, accurate judgment results, clear and concise logic, and easy program implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0032] Figure 1 The present invention is a flowchart of a concise voltage-time type distribution terminal action logic analysis method. DETAILED DESCRIPTION

[0033] The technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] like Figure 1 The present invention provides a concise voltage-time type distribution terminal action logic analysis method, comprising:

[0037] S1. Determine the state attributes of the voltage-time type distribution terminal action logic analysis;

[0038] The state attributes of the voltage-time type distribution terminal action logic analysis in step S1 include: voltage type terminal zero voltage locking state, voltage type terminal Y locking state, voltage type terminal X locking state, voltage type terminal open and close position state, and voltage type terminal side voltage state.

[0039] S2. quantize the state attribute in step S1 to obtain a quantized value of the state attribute;

[0040] The state attribute quantized values ​​in step S2 include the voltage type terminal zero voltage locking state value, the voltage type terminal Y locking state value, the voltage type terminal X locking state value, the voltage type terminal open / close position state value, and the voltage type terminal side voltage state value.

[0041] The step S2 obtains the quantized value of the state attribute, which specifically includes the following sub-steps:

[0042] S2.0: voltage type terminal zero voltage locking state. When the voltage type terminal zero voltage locking is activated, the voltage type terminal zero voltage locking state value is 1, otherwise it is 0;

[0043] S2.1: Voltage type terminal Y locking state. When the voltage type terminal Y is locked, the voltage type terminal Y locking state value is 1, otherwise it is 0;

[0044] S2.2: The locking state of voltage type terminal X. When the locking action of voltage type terminal X is activated, the locking state value of voltage type terminal X is 1, otherwise it is 0.

[0045] S2.3: Voltage type terminal opening and closing position status. When the voltage type terminal is closed, the voltage type terminal opening and closing position status value is 1, otherwise it is 0;

[0046] S2.4: Voltage status of the voltage type terminal side. When there is voltage on the power supply side of the voltage type terminal, the voltage status value of the voltage type terminal side is 1, otherwise it is 0.

[0047] S3. Sort the state attribute quantization values ​​in step S2 and obtain the binary number of the state attribute quantization value;

[0048] In step S3, the state attribute quantization values ​​are sorted from right to left.

[0049] S4. Convert the binary number obtained in step S3 into a decimal number to obtain an action logic value;

[0050] The action logic value formula in step S4 is:

[0051] S=1×S0+2×S1+4×S2+8×S3+16×S4 (1);

[0052] In the formula, S is the action logic value, S0 is the unary number of the first state quantization after the step S3 is sorted, S1 is the binary number of the second state quantization after the step S3 is sorted, S2 is the binary number of the third state quantization after the step S3 is sorted, S3 is the binary number of the fourth state quantization after the step S3 is sorted, and S4 is the binary number of the fifth state quantization after the step S3 is sorted.

[0053] S5. Establish an action logic judgment conclusion table, the action logic judgment conclusion table includes the action logic value and the action logic value corresponding to the action logic judgment; the action logic value conclusion table also includes the logical judgment corresponding to the action logic value;

[0054] If the logic judgment in the action logic value conclusion table is correct, the action logic judgment is that the logic action is correct; if the logic judgment is incorrect, the action logic judgment is that the logic action is incorrect. When the action logic judgment is that the logic action is incorrect, the action logic judgment can be a specific judgment of the incorrect logic action.

[0055] The action logic analysis conclusion table of the embodiment of the present invention is shown in Table 1 below:

[0056] Table 1 Action logic analysis conclusion table:

[0057]

[0058] S6. In actual application, the action logic value of the voltage-time type distribution terminal is calculated, and the action logic value is obtained by querying the action logic judgment conclusion table to obtain the corresponding action logic judgment.

[0059] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A concise voltage-time type distribution terminal action logic analysis method, including: S1. Determine the state attributes of the voltage-time type distribution terminal action logic analysis; S2. quantize the state attribute in step S1 to obtain a quantized value of the state attribute; S3. Sort the state attribute quantization values ​​in step S2 and obtain the binary number of the state attribute quantization value; S4. Convert the binary number obtained in step S3 into a decimal number to obtain an action logic value; S5. Establish an action logic judgment conclusion table, the action logic judgment conclusion table includes an action logic value and an action logic judgment corresponding to the action logic value; S6. In actual application, the action logic value of the voltage-time type distribution terminal is calculated, and the action logic value is obtained by querying the action logic judgment conclusion table to obtain the corresponding action logic judgment.

2. According to a concise voltage-time type distribution terminal action logic analysis method according to claim 1, the state attributes of the voltage-time type distribution terminal action logic analysis in step S1 include: Voltage type terminal zero voltage locking state, voltage type terminal Y locking state, voltage type terminal X locking state, voltage type terminal open and close position state, voltage type terminal side voltage state.

3. According to a concise voltage-time type distribution terminal action logic analysis method as described in claim 1, the state attribute quantization value in step S2 includes the voltage type terminal zero voltage lock state value, the voltage type terminal Y lock state value, the voltage type terminal X lock state value, the voltage type terminal open and close position state value, and the voltage type terminal side voltage state value.

4. According to a concise voltage-time type distribution terminal action logic analysis method according to claim 1, the state attribute quantization value is obtained in step S2, specifically including the following sub-steps: S2.0: voltage type terminal zero voltage locking state. When the voltage type terminal zero voltage locking is activated, the voltage type terminal zero voltage locking state value is 1, otherwise it is 0; S2.1: Voltage type terminal Y locking state. When the voltage type terminal Y is locked, the voltage type terminal Y locking state value is 1, otherwise it is 0; S2.2: The locking state of voltage type terminal X. When the locking action of voltage type terminal X is activated, the locking state value of voltage type terminal X is 1, otherwise it is 0. S2.3: Voltage type terminal opening and closing position status. When the voltage type terminal is closed, the voltage type terminal opening and closing position status value is 1, otherwise it is 0; S2.4: Voltage status of the voltage type terminal side. When there is voltage on the power supply side of the voltage type terminal, the voltage status value of the voltage type terminal side is 1, otherwise it is 0.

5. According to the concise voltage-time type distribution terminal action logic analysis method described in claim 1, the state attribute quantization values ​​in step S3 are sorted in sequence from right to left.

6. According to a concise voltage-time type distribution terminal action logic analysis method according to claim 1, the action logic value formula in step S4 is: S=1×S0+2×S1+4×S2+8×S3+16×S4 (1); In the formula, S is the action logic value, S0 is the unary number of the first state quantization after the step S3 is sorted, S1 is the binary number of the second state quantization after the step S3 is sorted, S2 is the binary number of the third state quantization after the step S3 is sorted, S3 is the binary number of the fourth state quantization after the step S3 is sorted, and S4 is the binary number of the fifth state quantization after the step S3 is sorted.

7. According to a concise voltage-time type distribution terminal action logic analysis method as described in claim 1, the action logic value conclusion table also includes a logical judgment corresponding to the action logic value.

8. According to a concise voltage-time type distribution terminal action logic analysis method as described in claim 7, if the logic judgment in the action logic value conclusion table is correct, the action logic is judged as the logical action is correct; if the logic judgment is incorrect, the action logic is judged as the logical action is incorrect.

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